Myopia as a risk factor for open-angle glaucoma: A systematic review and meta-analysis

Objective: To determine the association between myopia and open-angle glaucoma. Design: Systematic review and meta-analysis of observational studies. Participants: Thirteen studies involving 48 161 individuals. Methods: Articles published between 1994 and 2010 were identified in PubMed, Embase, and reference lists. Study-specific odds ratios (ORs) were pooled using a random effects model. Main Outcome Measures: Odds ratios with 95% confidence intervals (CIs) of myopia as a risk factor for open-angle glaucoma. Results: Data from 11 population-based cross-sectional studies were included in the main analyses. The pooled OR of the association between myopia and glaucoma based on 11 risk estimates was 1.92 (95% CI, 1.542.38). On the basis of 7 risk estimates, the pooled ORs of the associations between low myopia (myopia up to -3 D) and glaucoma and between high myopia (≤-3 D myopic) and glaucoma were 1.65 (1.262.17) and 2.46 (1.933.15), respectively. There was considerable heterogeneity among studies that reported an association between any myopia and glaucoma (I2=53%) and low myopia and glaucoma (I2=29%), but not for high myopia and glaucoma (I2=0%). After omitting studies that contributed significantly to the heterogeneity, the pooled ORs were 1.88 (1.602.20) for any myopia and glaucoma and 1.77 (1.412.23) for low myopia and glaucoma. Conclusions: Individuals with myopia have an increased risk of developing open-angle glaucoma. Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.

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